Fault detection for subscriber loop repeaters

Details Fault detection for subscriber loop repeaters Fault detection for subscriber loop repeaters

2005-01-11

2005-01-11

Ho, Duc (Department: 2665)

Multiplex communications

Diagnostic testing

Fault detection

C370S252000, C370S492000, C379S338000

Reexamination Certificate

active

06842426

ABSTRACT:
Systems and methods are described for fault detection for subscriber loop repeaters. A method includes monitoring an upstream signal on a digital subscriber loop for a fault detection signal that is added to said upstream signal at a repeater; and determining if a fault has occurred. An apparatus includes a digital subscriber loop fault detection system including: a receiver circuit that monitors an upstream signal on said digital subscriber loop for a fault detection signal that is added to said upstream signal at a repeater; and a logic circuit that determines whether a fault has occurred.

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